Fast Light Digital modem application (FLDigi) is a free and open-source program which allows an ordinary computer's sound card to be used as a simple two-way data modem. If you would like to try FLDigi, you can download and install the programs from https://sourceforge.net/projects/fldigi/. You should also load FLMsg.exe and Flamp.exe. Introduction-to-NBEMS-ARRL

T-Hunting aka Fox Hunting has a long amateur radio history. Hunt participants use radio direction finding techniques to locate one or more radio transmitters hidden in a designated search area. Rich Harrington, KN6FW will be presenting some of the systems and techniques used in T-Hunting. There is an active local ham community that participates in T-Hunting. There will be a hunt the following day in Fremont sponsored rdf-sf (https://qsl.net/sfthunt/rdf-sf/) and we're invited to participate with our new learned techniques. About Rich Harrington: First ham license WA6GJF about 1960. First class radio telephone license 1960. First transmitter hunt about 1962. US Navy 1966-1972 ECM operator (Transmitter hunting). Retired Pacific Bell communication engineer. Registered Professional Engineer with the state of California. Amateur radio operator KN6FW. Upgraded to extra when the code requirement went to 5 wpm. Hobby: Designing and using radio direction finding equipment

Do you have a computer in your shack storing your valuable logs and carefully configured software? The internet can be a dangerous place. Computer security is the protection of computer systems and the data stored on them. This presentation will introduce good computer security practices and how to incorporate them into your everyday routine. Computer Security in the Shack

RTL-SDRs are ultra cheap software defined radios that runs on most platforms with a wealth of free software. If you have one bring it in with a laptop to try some software. An introduction to RTL-SDR

Jack has been operating mobile a lot and has put together a minimal FT-8 rig in a backpack.

Members turn to speak on various topic of interest

Recently, lots of Bay Area Volunteer Examiners have come together several times to help the UC Berkeley Electrical Engineering and Computer Science (EECS) department. The instructors are encouraging their students to (optionally) become licensed hams, so they can test what they build in class. She'll describe what it took to get (and keep) these "Mega-Sessions" going. All the participants are delighted to be helping in (Science, Technology, Engineering, and Math) STEM education, in addition to furthering the amateur radio hobby. Organizining a Mega VE Session

We flew another HAB - Photos

We will have a presentation on the Moxon Rectangle antenna. Invented by Les Moxon, G6XN, The Moxon is a stealthy gain antenna that's inexpensive and fun to build. It's a great Saturday antenna project, especially for new hams seeking their first gain antenna. The Moxon is especially attractive to hams who want to avoid purchasing more expensive towers and rotators and who desire a directional antenna. For their size, Moxons are high performance antennas that lend themselves well to the spirit of experimentation and easily be scaled for any band, HF to UHF.

We had a great Field Day - come join us next year!

DXers thrill at a contact with an exotic and distant location like Heard Island or Turkmenistan, but you can hardly get more distant and exotic than the moon. Hams have been making contacts with other Earth-based stations by bouncing radio signals off the moon (EME) for many years. But with the advent of weak-signal digital modes like JT65 it no longer takes expensive equipment, gigantic antennas and powerful amplifiers to be successful. Gary Lauterbach, AD6FP, of the Stanford Amateur Radio Club has been doing EME for nearly 20 years. His presentation will include some history of EME as well as current activities; what bands, modes, and antennas are commonly used; and how to deal with tracking, frequency stability, doppler shift, and path losses. I'm expecting this will inspire some (or many) of us to try our hand at this exotic niche of ham radio. EME Presentation

At our April meeting, Alan will explore the world of 3D printing. While not specific to ham radio, 3D printing certainly has a place in building components of a ham station. And since prices for 3D printers continue to come down rapidly, it's no longer only reserved for well-funded academic laboratories and big corporations. Come learn what can be done with 3D printers, not just in the realm of science fiction any longer.